US3278480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfochlorinated hydrocarbon polymers as cure accelerators for sulfur curable ethylene-propylene terpolymer rubbers
Assignee: EIDP Inc
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Filing: 1962-11-15
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Granted: 1966-10-11
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Expires: 1982-11-15
Abstract
No abstract record available.
Inventors
- 👤 Radcliff Robert Ricketts
- 👤 Schoenbeck Melvin Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:09
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/16; C08K; C08K3/00; C08K3/02; C08K3/04; C08K3/06; C08L23/26; C08L23/32; C08L2312/00; C08L91/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A PROCESS FOR PREPARING A SULFUR-CURED, FILLER-LOADED ELASTOMERIC COMPOSITION WHICH COMPRISES MIXING (I) A NORMALLY SOLID ELASTOMERIC COPOLYMER OF AT LEAST ONE A-MONOOLEIN AND AT LEAST ONE NON-CONJUGATED HYDROCARBON DIENE, AND ELASTOMERIC COPOLYMER HAVING UP TO ABOUT 2 GRM-MOLES OF CARBON-TO-CARBON DOUBLE BONDS PER KILOGRM, (II) FROM ABOUT 20 TO 300 PARTS OF A FILLER COMPOUND PER 100 PARTS OF COPOLYMER, (III) A SULFOCHLORINATED SATURATED ALIPHATIC HYDROCARBON POLYMER CONTAINING AT LEAST ABOUT 20 WEIGHT PERCENT CHLORINE AND AT LEAST ABOUT 0.4 WEIGHT PERCENT SULFUR CHEMICALLY INCORPORATED THEREIN, AND (IV) A SULFUR-CURING SYSTEM IN AMOUNTS CONTAINING SUFFICIENT SULFUR TO REACT WITH SAID COPOLYMER; AND HEATING THE MIXTURE TO EFFECT A CURE.
Claim 2
Dependent Claim
110 words
A PROCESS FOR PREPARING A SULFUR-CURED, FILLER-LOADED ELASTOMERIC COMPOSITION WHICH COMPRISES MIXING (I) A NORMALLY SOLID ELASTOMERIC COPOLYMER OF AT LEAST ONE A-MONOOLEIN AND AT LEAST ONE NON-CONJUGATED HYDROCARBON DIENE, AND ELASTOMERIC COPOLYMER HAVING UP TO ABOUT 2 GRM-MOLES OF CARBON-TO-CARBON DOUBLE BONDS PER KILOGRM, (II) FROM ABOUT 20 TO 300 PARTS OF A FILLER COMPOUND PER 100 PARTS OF COPOLYMER, (III) A SULFOCHLORINATED SATURATED ALIPHATIC HYDROCARBON POLYMER CONTAINING AT LEAST ABOUT 20 WEIGHT PERCENT CHLORINE AND AT LEAST ABOUT 0.4 WEIGHT PERCENT SULFUR CHEMICALLY INCORPORATED THEREIN, AND (IV) A SULFUR-CURING SYSTEM IN AMOUNTS CONTAINING SUFFICIENT SULFUR TO REACT WITH SAID COPOLYMER; AND HEATING THE MIXTURE TO EFFECT A CURE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |